FATIGUE/FRACTURE RELIABILITY AND MAINTAINABILITY ANALYSIS OF THE HEIDRUN TLP TETHER SYSTEM

The Heidrun TLP tether system, subjected to operational oscillatory tensile loads, is vulnerable to fatigue and fracture. Because of uncertainties in loads and strengths, a reliability approach is employed to quantify structural performance and to verify integrity. Improvement in reliability can be accomplished with a maintenance program of periodic inspection and repair. Results of a reliability analysis indicate that the Norwegian Petroleum Directorate requirements relating to load bearing structures are satisfied. Effects of uncertainties in defining system parameters are also studied.

• Supplemental Notes:
  • OMAE 1995, 14th Intl Conf on Offshore Mechanics & Arctic Engng; 18-22 June 1995; Copenhagen, Denmark. Sponsored by ASME et al. Procs. Publ by ASME, ISBN 0-7918-1308-8. Vol II, p 187 [12 p, 10 ref, 13 tab, 5 fig]
• Authors:
  • Wirsching, P H
  • Karsan, D I
  • Hanna, S Y
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Fatigue (Mechanics); Fracture mechanics; Reliability; Structural analysis; Tension
• Uncontrolled Terms: Fracture; Structural reliability
• Old TRIS Terms: Tension leg platforms
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00718765
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 27 1996 12:00AM